<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        li {
            list-style-type: none;
        }
        a{
            text-decoration: none;
        }

        .box {
            width: 1226px;
            height: 615px;
            background-color: pink;
            margin: 0 auto;
        }

        .left {
            float: left;
            width: 234px;
            height: 100%;
            background-color: purple;
        }
        .right{
            float: left;
            width: 992px;
            height: 100%;
            background-color: skyblue;
        }
        .right ul li{
            float: left;
            width: 234px;
            height: 300px;
            background-color: pink;
            margin-left: 14px;
            margin-bottom: 14px;
        }
        .right ul li a{
            width: 100%;
            height: 100%;
            display: inline-block;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="left">左侧</div>
        <div class="right">
            <ul>
                <li><a href="http://www.baidu.com" target="_blank">1</a></li>
                <li><a href="">2</a></li>
                <li><a href="">3</a></li>
                <li><a href="">4</a></li>
                <li><a href="">5</a></li>
                <li><a href="">6</a></li>
                <li><a href="">7</a></li>
                <li><a href="">8</a></li>
            </ul>
        </div>
    </div>
</body>

</html>